RHDB_PCC_MASK 154 uspace/drv/bus/usb/ohci/ohci_rh.c OHCI_CLR(regs->rh_desc_b, RHDB_PCC_MASK << RHDB_PCC_SHIFT); RHDB_PCC_MASK 158 uspace/drv/bus/usb/ohci/ohci_rh.c OHCI_SET(regs->rh_desc_b, RHDB_PCC_MASK << RHDB_PCC_SHIFT);HelenOS homepage, sources at GitHub